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/* -*- c-basic-offset: 4 indent-tabs-mode: nil -*- vi:set ts=8 sts=4 sw=4: */
/*
Sonic Visualiser
An audio file viewer and annotation editor.
Centre for Digital Music, Queen Mary, University of London.
This file copyright 2008 QMUL.
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License as
published by the Free Software Foundation; either version 2 of the
License, or (at your option) any later version. See the file
COPYING included with this distribution for more information.
*/
#include "SelectableLabel.h"
#include <iostream>
#include <QApplication>
namespace sv {
SelectableLabel::SelectableLabel(QWidget *p) :
QLabel(p),
m_selected(false)
{
setTextFormat(Qt::RichText);
// setLineWidth(2);
// setFixedWidth(480);
setupStyle();
setOpenExternalLinks(true);
}
SelectableLabel::~SelectableLabel()
{
}
void
SelectableLabel::setUnselectedText(QString text)
{
if (m_unselectedText == text) return;
m_unselectedText = text;
if (!m_selected) {
setText(m_unselectedText);
resize(sizeHint());
}
}
void
SelectableLabel::setSelectedText(QString text)
{
if (m_selectedText == text) return;
m_selectedText = text;
if (m_selected) {
setText(m_selectedText);
resize(sizeHint());
}
}
void
SelectableLabel::setupStyle()
{
QPalette palette = QApplication::palette();
setTextInteractionFlags(Qt::LinksAccessibleByKeyboard |
Qt::LinksAccessibleByMouse |
Qt::TextSelectableByMouse);
if (m_selected) {
setWordWrap(true);
setStyleSheet
(QString("QLabel:hover { background: %1; color: %3; } "
"QLabel:!hover { background: %2; color: %3 } "
"QLabel { padding: 7px }")
.arg(palette.mid().color().lighter(120).name())
.arg(palette.mid().color().lighter(140).name())
.arg(palette.text().color().name()));
} else {
setWordWrap(false);
setStyleSheet
(QString("QLabel:hover { background: %1; color: %3; } "
"QLabel:!hover { background: %2; color: %3 } "
"QLabel { padding: 7px }")
.arg(palette.button().color().name())
.arg(palette.light().color().name())
.arg(palette.text().color().name()));
}
}
void
SelectableLabel::setSelected(bool s)
{
if (m_selected == s) return;
m_selected = s;
if (m_selected) {
setText(m_selectedText);
} else {
setText(m_unselectedText);
}
setupStyle();
parentWidget()->resize(parentWidget()->sizeHint());
}
void
SelectableLabel::toggle()
{
setSelected(!m_selected);
}
void
SelectableLabel::mousePressEvent(QMouseEvent *e)
{
m_swallowRelease = !m_selected;
setSelected(true);
QLabel::mousePressEvent(e);
emit selectionChanged();
}
void
SelectableLabel::mouseDoubleClickEvent(QMouseEvent *e)
{
QLabel::mouseDoubleClickEvent(e);
emit doubleClicked();
}
void
SelectableLabel::mouseReleaseEvent(QMouseEvent *e)
{
if (!m_swallowRelease) QLabel::mouseReleaseEvent(e);
m_swallowRelease = false;
}
void
SelectableLabel::enterEvent(QEnterEvent *)
{
// cerr << "enterEvent" << endl;
// QPalette palette = QApplication::palette();
// palette.setColor(QPalette::Window, Qt::gray);
// setStyleSheet("background: gray");
// setPalette(palette);
}
void
SelectableLabel::leaveEvent(QEvent *)
{
// cerr << "leaveEvent" << endl;
// setStyleSheet("background: white");
// QPalette palette = QApplication::palette();
// palette.setColor(QPalette::Window, Qt::gray);
// setPalette(palette);
}
} // end namespace sv
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